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(Model.)

7 J. E. BOYLE. STOP VALVE FOR HOUSE PUMPS. No; 249,678. Patented Nov. 15,1881.

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E'Iiiij S ATTEST INVENTORI MTED' E PATENT "OFFER. 1

a {,EJAivIEs BOYLE, OFBROOKLYN, Assienon TO HENRY HUBER, on New YORK,

STOP-VALVE FOR House-Pumps.

a srncrnica'rroiv forming art of iLettersPatent No. 249,578, dated. November. 15, 1881.

Application fiimapnumen (Model) Be it fknowuthat I, [JAMES E BOYLE, of jBroeklymin the county of Kings and State of New ,Xork, have invented certain, Improve- ,ments in Stop-Yalves for House-Pumps, of

. few "oh the following is a specification. Q

,[Ilhf (five tionrelates to anaut maticstopvalvfe to be .employedin connection with a house pump. In, some localities,where water il b lppli d tothedifierent floors of thebuildi l mammal a vi nin he at ihi ft rise, tothe basins dnriugthedayfrom various causes, and} pumps are employed tolil't it. 1;, At t a ,night, howevcllv helwater willjrise, and,if.the aucets be left open, wilLoverflow the basins t. forflsinksand oauseserious trouble, besidesa waste of. water. The causes ofthis fluctuation I in the water arise mainly, from an insufiicient.

; supply and a deficient head, the'jdemandfor water being mainly, during the day, and very little'being usedatnight. As thewater will l not flowofitself during the day, under such t. circumstances, theuser, after pumping all that t. J is needed, isapt toleave the faucet turned on, 25 and this causes trouble at night when the flow begins, as the water flows readily throughthe wpump. I j Y I i To obviate theabove detects Iarrange an t t automatic stop-valvein the service-pipefbelow the pump, and preferably above thefordinary day-level of the waterin said pipe, said valve a i being so arranged as toclose automatically j v I when the water rises at night and cut it oflf,

but to permit the water to pass readily when the pumpis in operation, all as willfbe more fullylhereinafter set forth. t

I a In the drawings, which serve to illustrate my inveutiomliigure l is avertical mid-section g l of iny improved valve, and Fig. 2. is aplan of 0; the same with the cap removed, so as to show the diaphragm. I Fig. 3 is a view, on a small 1 scale, of a house-pump ot' the ordinary kind, adapted to be used in connection wit-hm y valve.

. t v The stop-valve may be constructed. in a va- 4 5 riety of ways, all embodying. the same principle of operation, but that I have here shown is simple and easily made. l

Let A represent the water-service pipe, and e B a receiver attachedthereto,preferably by an. 501 ordinary wipe-joint)? The upper part of this rubber, leather, or similar material, to form a pipet of tie pressure therein, and this pressure, acting receiver has aninternal screw-thread at a, to'

receive a water-chamber, O, which is'screwed therein. When sci-e wed together the two parts Band C clamp between them a gasket, b, 'of

valve-seat around the valve-opening in the bottom ofthe chamber 0. D is a valve, which has a stem,d, that passes up into a guide ate in the screw-cap E of thewater-chamber. F is theoutletto thefpumpG, and through it to the faucets. When screwed into the chamber 0, the cap Eclamps a diaphragm, H, preferably of rubber, down onto a shoulder in the rim of the chamber and binds fastits edge. The stemd off the valve passes through the diaphragm, and the latter is clamped tightly thereto byniearis of'a nut-,f, as shown. The suctionpipe gfof the pump is coupled to the outlet Eofthe stopvalve chamber, and the'outletthe pump leads to the basins or fancets... e j 'So far as described the operation of the valve is as follows: During the night, when the we ter rises in the pipe A, it passes through the valve-opening in the bottom of the chamber 0,

by the dotted lines,) and out through the out- ,let F-to the pump. This gives the water head enough to fill the chamber 0 and create a litupward on thediaphragm H, (which has an area greater than that of the valve D,) lifts the valve to its seat and cuts off the incoming water. As soon asthe pressure in the mains is reduced and the water falls, the valve again drops to its former position, (indicated by'the dotted lines.) 7

The pump may be used atany time, no mat ter what maybe the condition of the valve, as

readily by the pump.

75 (the valve D standing normally, as indicated The pump shown represents onein common use, and I make no claim to it. Any kind vof pump may be employed. i

My'stop-valve may be put in any position where it will be out of the way and outof sight,

and as it works automatically it will not need to be touched or tampered with by any one, unless it-fails to work from some cause. as the valve is between the pump and the streetmain it is not important where it is set. As an equivalent of the diaphragm a piston playing in a cylinder might be substituted;

but as the friction of a piston is apt to be variable I prefer the diaphragm. The stop-valve may stand in any position, and will work as well in one position as another. Having thus described my invention, I claim 1. An automatic stop-valve for houses wherein the water-supply has a fluctuating pressure and a pump is required, which consists of a casing inclosing a cut-off valve and its seat and adiaphragm, or its equivalent, of greater area than the valve, and connected with the stem of the same, an inlet for the water beyond the valve-opening, and an outlet between the valve and the diaphragm, whereby the back-pressure of water from thepump or pipe will liftthe diaphragm and close the valve, thus cutting ofl' the influx of water, substantially'as set forth. 9 i

2. The combination, with a house-pump connected with the water-service pipe, of a stopvalve arranged between the pump-and the main,

composed of acut-off valve actuated by the fluctuations of a diaphragm, or its equivalent,

attached thereto, all arranged within a easing having an outlet to the pump between the dia- Solong" pump is not in operation, as set forth.

phragm and the valve, whereby the suctionof the 'pumpby exhausting the water and air from the chamber allows the diaphragm to fall and open the valve, substantially as set forth.

3. The combination, to form an automatic stop-valve for water-service pipes of houses, of the chamber 0. provided with a valve-opening andan outlet, F, the valve D, arranged to close the valve-opening, and the diaphragm H, or its equivalent, connected with the valve and adapted to open or close the valve-opening by its fluctuations, the outlet F being arranged between the valve and the diaphragm, subadmit air upon the diaphragm, and the 'concave rest or support j, all arranged to operate substantially as and for the purposes set forth.

5. An automatic valve for house-pumps, arranged between the house-pump and the watermain, and arranged to prevent the water from rising to and escapin g at the'faucets when t'h In witness whereof I have hereunto signed my name in the presenceot' two subscribing Witnesses JAMES E. BOYLE.

Witnesses:

ARTHUR (J. FRASER, HENRY OONNETT. 

